Forearms
Watch Tutorial
https://www.youtube.com/shorts/gPr9WMLrIvQ
https://www.youtube.com/shorts/y-x14sVi12o
https://www.youtube.com/shorts/mg9N9yjeNJU
https://www.youtube.com/shorts/-iTo53bhtGQ
https://www.youtube.com/shorts/8o9v7NAHAyg
https://www.youtube.com/shorts/vA5TbwH3RFM
Sit bench edge.
Hold bar underhand grip.
Rest forearms on thighs, wrists over knees.
Lower wrists.
Curl wrists up.
Keep forearms still.
Lower slowly.
Repeat.